Beaty, Janice J., author
Kencana, 2013
Buku Teks
edited by Colin Jerolmack and Shamus Khan
Oxford University Press, 2018
Buku Teks
Herr, Judy, author
Wadsworth and Cengage Learning, 2013
Buku Teks
Sagarin, Rafe, author
Island Press, 2012
eBooks
edited by Peter Moss and Alan Pence
Chapman & Hall, 1994
Buku Teks